What is the reason that .bin/www is recognized as a JavaScript file even though it does not have the .js extension when utilizing express-generator

Can you explain why .bin/www is recognized as a JavaScript file by express-generator even without the .js extension?

Whenever I create a bin/ folder with a www file inside, it's automatically identified as a JavaScript file despite the missing .js extension. Why does this happen?

Answer №1

Initially, the file is designated as "executable" by express-generator:

-rwxr-xr-x  1 samihult  staff  1591 Dec 31 16:07 www

Moreover, it commences with a "hashbang" line that specifies the interpreter to be used:

#!/usr/bin/env node

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